The information provided by bard represents all of the known information at this time.Despite good faith efforts to obtain additional information, the complainant / reporter was unable or unwilling to provide any further patient, product, or procedural details to bard.The following were reviewed as part of this investigation: patient severity, frequency analysis, applicable previous investigation(s), sample (if available), applicable fmea documents, labeling, and applicable manufacture records.Based on a review of this information, the following was concluded: the complaint of a damaged balloon was confirmed and the cause appeared to be use-related.The product returned for evaluation was a 20fr tri-funnel feeding tube.The damage observed in the returned sample was characteristic of over-pressurization (burst) damage.This can occur through over-filling the feeding tube balloon.The appropriate inflation volume is listed on the inflation valve and over-inflation can be avoided by fully draining the balloon prior to inflation.The returned product sample was evaluated and a longitudinally-aligned split in the balloon membrane was observed.This catheter damage was determined to be typical of a burst, and the characteristics observed which supported this type of failure included: tensile weakness in the membrane at the fracture site (due to over-inflation prior to burst).Granular fracture surface texture (typical of tearing failure modes).The split in the balloon was longitudinally aligned which is typical of burst-type failures, and the split traversed the entire length of the balloon.Additionally, residual material and discoloration was seen throughout the sample which established a usage history of the product and suggested the product had worked as intended for a period of time prior to the event.An examination of the catheter structure revealed no potential damage/defect related to manufacture of the product.These features are characteristically found due to the over-inflation and fracture of the balloon tubing.The product instruction for use (ifu) contains the following information which may be relevant to this type of event, "do not exceed the maximum recommended inflation volume as this may cause excessive pressure on the gastric mucosa and migration of the internal balloon into the peritoneal cavity".A lot history review (lhr) review is not possible, as no manufacturing lot number has been provided by the complainant.
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